EP2571735A1 - Drucksteuereinrichtung für ein fahrzeug sowie verfahren zur drucksteuerung - Google Patents
Drucksteuereinrichtung für ein fahrzeug sowie verfahren zur drucksteuerungInfo
- Publication number
- EP2571735A1 EP2571735A1 EP11709004A EP11709004A EP2571735A1 EP 2571735 A1 EP2571735 A1 EP 2571735A1 EP 11709004 A EP11709004 A EP 11709004A EP 11709004 A EP11709004 A EP 11709004A EP 2571735 A1 EP2571735 A1 EP 2571735A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressed air
- valve
- vehicle
- pressure control
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/10—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/02—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with mechanical assistance or drive
- B60T13/06—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with mechanical assistance or drive by inertia, e.g. flywheel
- B60T13/08—Overrun brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the invention further relates to a vehicle compressed air system according to claim 14 and to a compressed air compressor adapted therefor according to claim 17.
- the invention also relates to a method for pressure control in a vehicle according to claim 18.
- B a compressor and a storage container.
- the compressor is usually driven by the drive motor of the vehicle, with fixed and partially releasable couplings, z. B. via a controllable coupling, be provided between the compressor and the drive motor.
- the invention is therefore based on the object of specifying options for operating an air compressor both for compressed air generation and as an additional drive for the vehicle, which are easier and less expensive to implement.
- the invention is based on the idea to use the air compressor usually present in a commercial vehicle to support the drive motor of the vehicle.
- the compressed air compressor to support an acceleration process of the vehicle or when driving uphill, so to speak, operated as a pneumatic motor by compressed air from a compressed air reservoir of the vehicle is fed back into the compressor, in such synchronized to the movement of the compressor, that the drive motor undergoes a supporting torque.
- the drive motor of the vehicle which is usually designed as an internal combustion engine, can be designed with a lower rated power.
- This mode of operation is also referred to as the compressed air expansion mode.
- compressed air from the compressor is directed from a compression space of the air compressor into the compressed air supply and storage system and compressed air is supplied from the compressed air supply and storage system to the compression space in a compressed air expansion mode where the compressed air for propelling the vehicle is expanded.
- the pressure control device is set up for switching from the compressed air generation mode to the compressed air expansion mode and vice versa by electrical actuation of one or more electrically actuatable valves of the valve device by the electronic control unit.
- the electronic control unit may be provided with a corresponding programming for actuating the electrically actuated valves upon detection of a switching need.
- no complicated mechanical constructions such as the camphaser mentioned above are required for switching from the compressed air generation mode to the compressed air expansion mode and back again. Instead, this can be provided electrically actuated valves, which are actuated by the electronic control unit.
- crankshaft-dependent control includes a mechanical crankshaft-dependent control, z. B. via a camshaft, and any other type of crankshaft-dependent control, z. B. an electrical control, in the z. B. via a crankshaft sensor, the crankshaft position is detected and depending on the sensor signal crankshaft dependent something is controlled, for. As the operation of electrically operated valves.
- crankshaft-dependent control is carried out by appropriately timed actuation of these valves.
- the switching according to the invention between the compressed air generation mode and the compressed air expansion mode takes place by a change in the activation signals, ie. H. z. B. by changing the timing of these valves.
- the electronic control unit which type of operation of the electrical valves in each operating mode is necessary.
- valves in reciprocating compressors an intake valve (also called intake or low pressure valve) and an exhaust valve (also called discharge valve or high pressure valve) for the compressed air generation mode has. To distinguish it from the compressed air expansion mode, these valves are also referred to as a compression inlet valve and as a compression outlet valve.
- intake valve also called intake or low pressure valve
- exhaust valve also called discharge valve or high pressure valve
- An inlet port of the air compressor leading to the compression inlet valve is preceded by an electrically operable valve; a leading to the compression outlet valve outlet port of the air compressor, a further electrically actuated valve is connected downstream.
- An additional connection or a tap in the cylinder head of the air compressor is provided such that an electrically operable valve can be connected to the compression space via the additional connection.
- the connectable electrically operable valve may be formed of discrete discrete valves for a compressed air intake function in the compressed air expansion mode (expansion inlet valve) and the compressed air outlet function in the compressed air expansion mode (expansion exhaust valve) or as a combined expansion inlet / outlet valve, e.g. B. in the manner of a 3- / 2-way valve.
- the expansion intake and exhaust valves can in addition to the electrical operation and a crankshaft-dependent mechanical actuation z. B. have a camshaft.
- Compressed air compressor is also changed with regard to the compression inlet valve and / or the compression outlet valve: a) The compression inlet valve and the compression outlet valve of the air compressor are replaced by electrically controllable inlet and outlet valves, with which by electronic control both the compressed air generation mode as well as the compressed air expansion mode is realized. b) mechanically crankshaft controlled intake valves and exhaust valves are provided, which are detectable by electrical actuation in an open or closed position. The mechanical crankshaft controlled intake valves and exhaust valves realize both the compressed air generation mode and the compressed air expansion mode. c) The air compressor is provided with additional mechanical crankshaft controlled expansion inlet and exhaust outlet valves, which are then connected via electrically actuated valves to the compressed air reservoir or the atmosphere.
- the compression inlet valve of the air compressor can be maintained unchanged.
- An additional crankshaft-controlled expansion outlet valve is then added, which can be connected to the atmosphere via an electrically operable valve.
- the existing compression outlet valve of the air compressor can be maintained, but additionally controlled by crankshaft.
- a pressure control device z. B. by means of an electronic control unit, whether an increased driving force demand in the operation of the vehicle is present, for. B. when the vehicle is to be accelerated or when driving uphill.
- the pressure control device ensures that the compressed air compressor is operated in a compressed air expansion mode.
- the drive motor is assisted by pressurized air from the compressed air compressor with compressed air from the compressed air supply and storage system.
- the pressure control device also detects coasting during operation of the vehicle.
- a shear phase is z. B. detected when the driver wants to delay the vehicle or when driving downhill.
- the compressed air compressor is automatically operated by the pressure control device in a compressed air generation mode in which the compressed air compressor compressed air in the
- Compressed air supply and storage system promotes. In this way, during the coasting phases during operation of the vehicle, the compressed air withdrawals from the compressed air supply and storage system, which were made during the phases of increased driving force demand, can be compensated. As a result, a particularly energy-saving operation of the vehicle is possible.
- the compressed air compressor can be additionally switched by the pressure control device in an idle mode in which neither generates compressed air nor in the pressure air expansion mode is consumed.
- the idle mode is provided, as it were, as the third operation mode besides the compressed air generation mode and the compressed air expansion mode.
- a switchable dead space in a single-cylinder air compressor connecting the pressure chambers in a multi-cylinder air compressor or the decoupling of the air compressor from the drive motor by means of a switchable coupling.
- the pressure control device is adapted to automatically connect to the drive motor when using a separable via a clutch from the vehicle engine air compressor when the air compressor is operated in the compressed air generation mode or in the compressed air expansion mode.
- the valve device has a connection valve which is set up for the direct connection of two compression chambers of a multi-cylinder air compressor.
- the pressure control device is further configured to open the connection valve in the idle mode, whereby the compression spaces connected to the connection valve are connected to one another.
- By opening the connecting valve a connection between the connected compression chambers is made, which z.
- the pistons are arranged in opposite directions to each other by appropriate design of the crankshaft, such that during the upward stroke of one piston, the respective other, adjacent piston performs a downward stroke.
- all or at least part of the electrically actuatable valves are designed as piezoelectric, electromagnetically, electromotively, electropneumatically or electrohydraulically actuatable valves.
- the use of piezoelectrically actuated valves particularly advantageous because they allow very short response and response times with relatively large realizable passage cross-sections for the compressed air.
- all or at least part of the electrically actuated valves are integrated into the cylinder of the pneumatic compressor.
- the integration of the valves has been found in the cylinder head.
- all or at least part of the electrically actuated valves are integrated into the crankcase of the pneumatic compressor.
- all or at least part of the electrically actuatable valves are connected upstream of the inlet port of the pneumatic compressor. According to an advantageous development of the invention, all or at least part of the electrically actuated valves are connected downstream of the outlet connection of the compressed air compressor.
- the valve device is connected to an additional tap of the compression chamber of the air compressor.
- the tap can z. B. be provided in the form of a bore on the cylinder head. The valve device is then connected to this bore.
- the volume of the compression chamber is variable in time. This is not meant that the compressor or a part thereof, for. As the cylinder, temporally changed its shape, but for example in a reciprocating compressor, an upward and downward movement of the piston. In a volume reduction phase, the volume decreases in time, while in a volume increase phase, the volume increases in time.
- the pressure control device is configured to connect the compression chamber to the compressed air supply and storage system during the volume expansion phase in the compressed air expansion mode and to connect it to the atmosphere during a volume reduction phase. As a result, the compression space is relieved in the compressed air expansion mode in the volume reduction phase. The previously introduced during a volume expansion phase in the compression space compressed air can thus be released into the atmosphere. In the compressed air generation mode, compressed air is advantageously sucked out of the atmosphere during the volume enlargement phase and compressed air is supplied to the compressed air supply and storage system in a volume reduction phase.
- connection of the compression chamber is made with the compressed air supply and storage system in the compressed air expansion mode only during a portion of the volume expansion phase.
- the efficiency of the air compressor can be optimized to support the drive of the vehicle in terms of energy consumption. In particular, this only consumes as much compressed air as is useful and necessary for most economical use.
- the connection of the compression chamber with the compressed air supply and storage system is made directly at the beginning of the volume increase phase. For a reciprocating compressor, this means that the compression chamber is connected to the compressed air supply and storage system when the top dead center of the piston is reached.
- the connection of the compression chamber with the compressed air supply and storage system is made only during half the duration of the volume expansion phase.
- the compressed air consumption can be minimized and thus the energy efficiency of the device can be increased.
- a further reduction in compressed air consumption can be advantageously achieved if the connection is made only during a quarter of the volume increase phase.
- a further reduction in compressed air consumption is advantageously possible if the connection is made only during one-eighth of the volume increase phase.
- the expansion-exhaust valve is kept open during a complete half-turn of the crankshaft from bottom dead center to top dead center. Accordingly, the timing for the crankshaft dependent control of the expansion intake valve and the expansion exhaust valve are adjusted.
- the pressure control device is adapted to connect in the compressed air generation mode, the compression chamber during a volume reduction phase with the compressed air supply and storage system, especially if the pressure in the compression chamber is greater than the pressure in the compressed air supply and storage system, and the compression chamber during a volume expansion phase to connect to the atmosphere, in particular when the pressure in the compression chamber is less than the atmospheric pressure.
- the compressed air generation mode may advantageously be an arrangement of a compression inlet valve and a compression outlet valve, the z.
- the compression inlet valve and the compression outlet valve may advantageously be designed as a check valve, for. B. as a lamella valve.
- the respective connection of the compression chamber to the atmosphere or to the compressed air supply and storage system can be carried out purely by pressure or vacuum.
- the control of these compounds is crankshaft dependent, z. B. via a camshaft or by an electronic control unit.
- the compression inlet valve is opened during a complete half turn between the top dead center to the bottom dead center of the piston.
- the compression exhaust valve is not fully opened during half a crankshaft rotation, but only during a part, in particular during the last half of the crankshaft rotation before reaching top dead center, or only during the last 35 ° of rotation before reaching top dead center ,
- the amount of compressed air in the compressed air expansion mode, can be controlled by the pressure control device synchronously with the rotation of the drive shaft of the compressed air compressor into the compression space.
- the pressure control device on a valve device with a ventilation path and a vent path for ventilation of the compression chamber of the air compressor.
- the venting path and the venting path are connected or connectable to the compression space.
- the ventilation path can be connected to the compressed air supply and storage system, the venting path to the atmosphere.
- the valve device is connected via a drive shaft which is connected to the output shaft of the drive motor. ne or connectable camshaft mechanically actuated.
- camshaft control can also be used to control the air compressor in the compressed air expansion mode.
- Camshaft controls can advantageously be made very robust and durable.
- the camshaft may be fixedly connected to the output shaft of the drive motor or, for example via an actuatable clutch, temporarily connectable to the output shaft of the drive motor.
- the camshaft can be realized, for example, by arranging cams on the crankshaft of the pneumatic compressor. It is also advantageously possible to provide a separate, connected to the crankshaft of the air compressor or the output shaft of the drive motor camshaft.
- the valve device has at least one electrically actuated solenoid valve.
- an electronic control device for controlling the solenoid valve is provided.
- the design as a solenoid valve is also an advantageous control of the air compressor in Druck Kunststoffexpansionsmodus possible, with proven solenoid valve technology can be used, for. B. on long-life solenoid valves in the field of anti-lock braking systems.
- the use of an electronic control device has the advantage that the detection of the coasting phases and the phases with increased driving force requirement can be integrated in a single control, together with the control of the pneumatic compressor via the solenoid valve.
- the control can be advantageously realized as a control program for a microprocessor provided in the electronic control device.
- the electronic control device of the pressure control device is supplied with a signal from a sensor via which the position of the crankshaft of the air compressor or, with appropriate calibration with respect to the position of the crankshaft of the drive motor, alternatively also the crankshaft position is detected.
- the signal can advantageously be supplied to the electronic control device directly from a corresponding inductive, optical or other suitable sensor.
- the electrical The control unit uses the signal indicative of the position of the crankshaft for in-phase control of the electrically actuatable valves of the valve device.
- the electronic control device receives from an engine control unit information about the angular position of the output shaft of the vehicle engine.
- the engine control unit serves to control the drive motor of the vehicle.
- Known engine control units already have information about the angular position of the output shaft of the vehicle engine, which is determined by sensors, for example.
- this relative position can be determined and compensated by an electronic control device.
- the pressure peaks in the compressed air system due to the compression process are evaluated in time via at least one existing pressure sensor in the vehicle. From this, an angle difference between the angular position of the crankshaft of the pneumatic compressor and the angular position of the output shaft is determined as the correction value. Subsequently, the electronic control device uses the calculated correction value for the in-phase control of the valve device.
- the pressure control device has a further valve, via which a crankcase of the air compressor with compressed air can be acted upon.
- a crankcase of the air compressor with compressed air can be acted upon.
- the valve device for pressurizing the compressed air of the compression chamber is thereby operated in phase complementary to the further valve device for pressurizing the crankcase.
- the crankcase is connected to the atmosphere.
- compressed air is applied to the crankcase from the compressed air reservoir, the compression chamber is connected to the atmosphere.
- the invention also relates to an advantageous vehicle compressed air system with a pressure control device and a compressed air compressor of the type described above.
- the vehicle compressed air system has a heat exchanger, which is thermally coupled on the one hand with the drive motor or heated with the drive motor parts of the vehicle ,
- the heat exchanger is thermally coupled to parts of the compressed air supply and storage system for discharging the heat absorbed by the drive motor or the parts heated by the drive motor, so that heat can be released to the compressed air in the compressed air supply and storage system and thus the Compressed air can be heated up.
- the heat exchanger may be coupled directly to the drive motor or associated parts, for. B. with the exhaust system or the catalyst.
- the waste heat of the drive motor can be used to further increase the energy efficiency of the vehicle compressed air system.
- the compressed air is supplied with additional energy, which is when using the compressed air in Druck Kunststoffexpansionsmodus or other use of compressed air in the compressed air system, eg. B. to decelerate the vehicle can be used.
- the available pressure in the compressed air reservoir or other parts of the compressed air system can be increased so that compressed air is available at a higher level and can be used accordingly.
- the pressure control device is adapted to allow the heat to the compressed air supply and storage system only when the compressed air generation mode is not activated.
- This has the advantage that in the compressed air generation mode, the air compressor does not have to promote against an already increased by the supplied heat back pressure, which in turn has the advantage that the energy used to drive the air compressor is lower and also the wear of the air compressor is lower.
- the pressure control device can do this with another, z. B. electrically actuated, be equipped valve over which a thermal fluid circuit can be temporarily shut off by the heat exchanger. Alternatively, for this purpose, a pump which is provided for the promotion of the thermal fluid to be switched off.
- the invention also relates to an advantageous compressed air compressor for such a vehicle compressed air system.
- the invention relates to a method for pressure control in a vehicle, wherein the vehicle has at least one drive motor for generating a driving force of the vehicle, a compressed air supply and storage system and a compressed air compressor coupled or coupleable to the drive motor of the vehicle, having the features:
- compressed air is directed from a compression chamber of the air compressor into the compressed air supply and storage system
- compressed air is supplied from the compressed air supply and storage system into the compression space
- c) the switchover from the compressed air generation mode to the compressed air expansion mode and vice versa is carried out by electrical actuation of one or more rerer electrically operable valves of the valve device by an electronic control unit.
- the compressed air compressor is operated in compressed air generation mode during a coasting phase during operation of the vehicle and / or operated in a phase with increased driving force demand during operation of the vehicle, the compressed air compressor in the compressed air expansion mode.
- the electronic control device and a possibly required pressure sensor may be formed as part of an EAPU.
- An EAPU is an electronically controlled air conditioning unit for a vehicle equipped with a compressed air system.
- the control function of the pressure control device can be realized in the form of a program part in the control software of the EAPU.
- FIGS. 2 to 8 the relevant for the description of the invention compressed air components of the vehicle together with various embodiments of the pressure control device and
- FIGS 9 and 10 valve timing of the pressure control device.
- a vehicle 100 is shown, the drive motor 101, z. B. a diesel engine, which can provide a driving force for driving the vehicle 100 via a gimbal connected to the rear axle of the vehicle drive shaft 102.
- the drive motor 101 is connected via a shaft 103 to a compressed air compressor 1 of the vehicle 100.
- the shaft 103 is also the output shaft of the drive motor 101 and drive shaft of the air compressor 1.
- a translation between the drive motor and the air compressor can be provided by means of a transmission.
- the compressed air compressor 1 is also connected via a compressed air line with a compressed air supply and storage system of the vehicle 100, which is symbolized in the figures by a compressed air reservoir 12.
- the compressed air supply and storage system has, for example, a multi-circuit protection valve, an air dryer and a compressed air reservoir in the form of an overpressure-resistant container.
- the compressed air compressor 1 is designed as a conventional piston compressor.
- the compressed air compressor 1 has a cylinder 2 and a piston 3 therein.
- a crankcase 10 in which a connecting rod drive for the piston 3 is provided.
- the connecting rod drive has a connected to the drive shaft 103 of the air compressor 1 connecting rod 1 1, which is connected on one side with the piston 3 and on the other side with a connecting rod on the drive shaft 103.
- the piston 3 Upon rotation of the drive shaft 103, the piston 3 is placed in a cyclic up and down movement via the connecting rod drive.
- the piston 3 divides the compressed air compressor 1 in a compression chamber 4 and in one of the pressure medium side separate crankshaft space on the pressure medium side is connected to the interior 5 of the crankcase 10. During a downward movement of the piston 3, the volume of the compression space 4 is increased. The compressed air compressor is then in a volume enlargement phase, is sucked in the air from the atmosphere via an inlet port 13 and passes through a suction valve serving as a compression inlet valve 16 into the compression chamber 4.
- the compression inlet valve 16 may be formed as a check valve, which automatically opens as a result of a negative pressure in the compression chamber 4, compared with atmospheric pressure and automatically closes at an overpressure.
- the volume of the compression space 4 is reduced.
- the air contained therein is compressed.
- a pressure in the compression chamber 4 which is higher than the pressure in the connected compressed air reservoir 12, opens a likewise designed as a check valve compression outlet valve 17.
- the compressed air is fed from the compression chamber 4 to an outlet port 14 of the air compressor 1 and passes In a volume enlargement phase, the compression outlet valve 17 automatically closes due to the negative pressure present in the compression space 4, compared with the pressure at the outlet port 14 of the air compressor 1.
- an electronic control device which is designed as an electronic control unit 18.
- the electronic control unit 18 is connected via a data connection 19, z.
- a data bus in the form of a CAN bus connected to other electronic devices in the vehicle.
- the electronic control unit 18 may be connected to an engine control unit of the drive motor of the vehicle.
- the electronic control unit 18 is connected to a first electrically operable valve 7, which is designed as a solenoid valve in the form of a 2/2-way valve, via an electrical line.
- the first electrically actuated valve 7 is connected via a Compressed air line 20 connected to a tap 33 of the compression chamber 4.
- the tap 33 may be formed, for example, as a bore in the cylinder 2 of the air compressor.
- the first electrically operable valve 7 can be switched by the electronic control unit 18 from the blocking position shown in Figure 2 in a passage position. In the passage position, the first electrically operable valve 7 connects the compression chamber 4 with a first mechanically actuated valve 9 of the illustrated valve device 7, 8, 9, 70. In the blocking position, the first electrically actuated valve 7 separates this connection.
- the electronic control unit 18 is also connected to a second electrically operable valve 70, which is designed as a solenoid valve in the form of a 2/2-way valve, via an electrical line.
- the second electrically operable valve 70 can be switched by the electronic control unit 18 from the blocking position shown in Figure 2 in a passage position.
- the second electrically actuatable valve 70 connects the interior 5 of the crankcase 10 with a second mechanically operable valve 8 of the valve device 7, 8, 9, 70 shown. In the blocking position, the second electrically actuatable valve 70 separates this connection.
- the first mechanically operable valve 9 is designed as a mechanically actuated 3/2-way valve. In a ventilation position, which is shown in FIG. 2, the first mechanically operable valve 9 connects the compression space 4 via a compressed air line 20 to the compressed air reservoir 12, provided that the first electrically actuatable valve 7 is in the passage position. In a venting position, the first mechanically operable valve 9 connects the compression chamber 4 via the compressed air line 20 with the atmosphere, provided that the first electrically actuated valve 7 is in the passage position.
- the second mechanically operable valve 8 is also designed as a mechanically actuated 3/2-way valve.
- the second mechanically operable valve 8 is connected via a compressed air line 21 to the interior 5 of the crankcase 10.
- the second mechanically operable valve 8 has a function comparable to that of the first mechanically actuable valve 9, namely a connection of the spa Belgeophuses 10 optionally with the compressed air reservoir 12 or with the atmosphere, provided that the second electrically actuated valve 70 is in the passage position.
- the first and second mechanically operable valves 8, 9 are operated mechanically via a camshaft controller.
- a cam 6 On the drive shaft 103 of the air compressor 1 symbolically a cam 6 is shown.
- the camshaft control is shown.
- the camshaft control is carried out in such a way that the mechanically actuatable valves 8, 9 are actuated in a phase-complementary manner, i. H.
- the first mechanically operable valve 9 is mechanically actuated
- the second mechanically actuatable valve 8 is inoperative.
- mechanically actuated second mechanically actuated valve 8 When mechanically actuated second mechanically actuated valve 8, the first mechanically actuated valve 9 is not actuated.
- the compressed air expansion mode alternately the compression chamber 4 and the inner space 5 of the crankcase 10 are acted upon by compressed air from the compressed air reservoir 12.
- the electronic control unit 18 switches the first and the second electrically actuatable valve 7, 70 in the Druck Kunststoffexpansionsmodus in the passage position and in the compressed air generation mode in the blocking position.
- the pressure control device in the embodiment according to FIG. 2 comprises the electronic control device 18 and a valve device formed from the electrically actuatable valves 7, 70 and the mechanically actuatable valves 8, 9.
- FIG. 3 shows a further advantageous embodiment of the pressure control device.
- the pressure control device in turn has the electronic control unit 18.
- the valves 8, 9 which can be mechanically actuated mechanically via the camshaft control are designed as electrically actuated solenoid valves as the third electrically actuatable valve 80 and as the fourth electrically actuatable valve 90, these valves being connected to the electronic control unit via electrical lines Control unit 18 are controllable.
- the solenoid valve 7 of FIG. 3 corresponds to the first electrically actuated valve 7 of FIG.
- the control of the third and fourth electrically operable valves 80, 90 performs the electronic control unit 18 based on information that receives the electronic control unit 18 via the data bus 19 from an engine control unit, in synchronism with the rotation of the drive shaft 103 of the air compressor 1 from.
- a possibly required correction value of the relative angular position of the crankshaft of the air compressor 1 to the position of the drive shaft 103 can be calculated from the electronic control unit 18 and taken into account on the basis of the temporal evaluation of the pressure peaks via the pressure sensors present in the vehicle.
- the electronic control unit 18 for detecting the rotational position of the drive shaft 103 may also be connected to an electrical sensor 22 which directly detects the rotational position of the drive shaft 103 or the crankshaft of the pneumatic compressor 1.
- the sensor 22 may, for example, similar to a Sensor of an antilock system be designed as an inductive sensor, which senses the angular position of the drive shaft 103 and the crankshaft of the air compressor 1 by detecting the position of a cam 6.
- the pressure control device in the embodiment according to FIG. 3 comprises the electronic control unit 18, the sensor 22 and a valve device formed from the first, the third and the fourth electrically actuable valve 7, 80, 90.
- the compressed-air expansion mode is activated by the electronic control unit 18 by switching the first electrically actuatable valve 7 and optionally the second electrically actuatable valve 70 from the blocking position into the passage position.
- a corresponding pressurization of the compression space or of the inner space 5 of the crankcase 10 is made possible via the first and the second mechanically actuatable valve 8, 9 or the third and the fourth electrically actuatable valve 80, 90.
- the compression inlet valve 16 closes automatically.
- no special control of the compression outlet valve 17 is required because it is kept closed via the pending on the outlet port 14 via the compressed air line 15 pressure.
- the embodiments according to FIGS. 2 and 3 can advantageously also be realized without those valves which are provided for pressurizing the crankcase 10.
- the invention can be realized with fewer modifications to the pneumatic compressor and with fewer components, but also without the possibility of supporting the drive of the vehicle in the upward phases of the piston 3.
- the embodiments described below, according to the figures 4 to 8 also in addition to that described with reference to Figures 2 and 3 Be pressurized the crankcase 10 to be configured.
- FIG. 4 shows an advantageous embodiment of the pressure control device, which can be used in conjunction with a pneumatic compressor 1 of conventional design, without modifications to the air compressor are required.
- the embodiment according to FIG. 4 is therefore particularly suitable for retrofitting the invention in existing vehicles in which no additional compressed air connection is to be retrofitted to the compression space 4 of the air compressor 1.
- the pressure control device has the already explained electronic control unit 18, which may be connected to the data bus 19 or a sensor 22 as needed.
- the pressure control device also has a fifth electrically operable valve 23 in the form of a solenoid valve and a sixth electrically actuatable valve 24 in the form of a solenoid valve.
- the fifth electrically actuatable valve 23 is connected upstream of the inlet port 13 of the pneumatic compressor 1.
- the sixth electrically actuatable valve 24 is connected downstream of the outlet port 14 of the pneumatic compressor and arranged in the compressed air line 15 to the compressed air reservoir 12.
- the fifth electrically actuatable valve 23 is designed as a 3/2-way valve.
- the sixth electrically actuable valve 24 is designed as a 3/2-way valve.
- the mentioned 3/2-way valves can also be designed as a combination of two 2/2-way valves.
- the fifth electrically actuatable valve 23 can connect the inlet port 13 of the pneumatic compressor 1 with the atmosphere in a switching position, as shown in FIG. In a second switching position, the fifth electrically actuatable valve 23 can connect the inlet port 13 with the compressed air reservoir 12.
- the sixth electrically actuatable valve 24 can connect the outlet port 14 of the pneumatic compressor in the switching position shown in Figure 4 with the compressed air reservoir 12. In a second switching position, the sixth electrically actuatable valve 24 can connect the outlet port 14 with the atmosphere.
- the electronic control unit 18 controls the fifth and the sixth electrically actuatable valve 23, 24 such that in the compressed air generation mode, both the fifth electrically actuable valve 23 and the sixth electrically actuable valve 24 are unactuated and thus in their switching position shown in FIG.
- the inlet port 13 is connected to the atmosphere
- the outlet port 14 is connected to the compressed air supply and storage system 12.
- the electronic control unit 18 activates the fifth and the sixth electrically actuatable valve 23, 24 as a function of the rotational angle position of the drive shaft 103, ie depending on the presence of a volume reduction or volume increase phase.
- the rotational position is determined for example via the sensor 22 or by receiving corresponding information via the data bus 19 from an engine control unit.
- the pressure control device in the embodiment according to FIG. 4 comprises the electronic control unit 18 and a valve device formed by the fifth and the sixth electrically actuatable valve 23, 24.
- FIG. 5 shows an embodiment in which the cylinder head of the pneumatic compressor 1 has been modified.
- the cylinder head has an expansion outlet valve 50 and an expansion inlet valve 51.
- the expansion outlet port 50 is connected via a separate expansion outlet port 52 of the cylinder head to a seventh electrically operable valve 57, which is formed as a 2/2-way valve.
- the seventh electrically operable valve 57 when electrically actuated, connects the expansion outlet port 52 to the atmosphere or blocks the expansion outlet port 52 from the atmosphere in the un-actuated position shown in FIG.
- the expansion inlet valve 51 is connected via a separate expansion inlet port 53 in the cylinder head with an eighth electrically actuatable valve 58, which is designed as a 2/2-way valve.
- the eighth electrically operable valve 58 connects in an actuated position the expansion inlet port 53 with the compressed air supply and storage system 12 and blocks this connection in the unactuated position, which is shown in FIG.
- the seventh and eighth electrically operable valves 57, 58 are connected to the electronic control unit 18 for electrical actuation.
- the expansion exhaust valve 50 and the expansion intake valve 51 are also mechanically crankshaft controlled via a cam shaft 56 by means of operating tappets 54, 55 which mechanically act on the expansion exhaust valve 50 and the expansion intake valve 51, respectively.
- the camshaft 56 is connected to the crankshaft of the air compressor 1, which also corresponds to the drive shaft 103, or connected to the output shaft of the drive motor 101.
- the electronic control unit 18 leaves the seventh and eighth electrically operable valves 57, 58 in the compressed air generation mode unactuated.
- the air compressor 1 performs compressed air generation due to the normal operation of the compression inlet valve 16 and the exhaust outlet valve 17.
- the electronic control unit 18 permanently actuates the seventh and eighth electrically operable valves 57, 58.
- the camshaft control of the expansion exhaust valve 50 and the expansion intake valve 51 is made effective.
- the expansion intake valve 51 is in a volume increase phase, i. H. during a downward movement of the piston 3, open, whereby compressed air from the compressed air reservoir 12 via the eighth electrically actuated valve 58 can flow into the compression chamber 4.
- a volume reduction phase i.
- the expansion intake valve 51 is closed by the camshaft control.
- the expansion exhaust valve 50 is opened by the camshaft control so that the air in the compression space 4 can escape to the atmosphere via the seventh electrically operable valve 57.
- the compression inlet valve 16 is automatically kept closed by the overpressure located in the compression space 4.
- the compression outlet valve 17 is kept closed by the pending from the compressed air reservoir 12 at the outlet port 14 pressure.
- the pressure control device in the embodiment according to FIG. 5 comprises the electronic control unit 18 and a valve device formed by the seventh and the eighth electrically actuatable valve 57, 58.
- FIG. 6 shows an embodiment which is similar to the embodiment of FIG. 5, so that the differences are discussed below. According to FIG. 6, only the expansion outlet valve 50 is camshaft-controlled in the same way as described above with reference to FIG. The control takes place in a comparable way using the seventh electrically actuatable valve 57 as in the embodiment according to FIG. 5.
- no expansion inlet valve 51 and no compression outlet valve 17 are provided. Instead, the connections 14, 53 shown in FIG. 5 are combined to form a common outlet connection 14 in the cylinder head of the compressed air compressor 1.
- the outlet port 14 is connected via a ninth electrically actuated valve 60, which is designed as a 2/2-way valve, with the compressed air supply and storage system 12.
- the ninth electrically operable valve 60 is electrically actuated by the electronic control unit 18. When actuated, the ninth electrically operable valve 60 connects the outlet port 14 to the compressed air supply and storage system 12. In the unactuated case, as shown in Figure 6, this connection is shut off.
- the electronic control unit 18 controls the seventh electrically operable valve 57 in the same manner as described above with reference to FIG.
- the camshaft control of the expansion outlet valve 50 takes place in the same way.
- the ninth electrically operable valve 60 is actuated differently by the electronic control unit 18 according to a programming provided therein, depending on the operating mode of the compressed air system.
- the electronic control unit 18 actuates the ninth electrically actuable valve 60 in response to the crankshaft position detected by the sensor 22 such that at a volume reduction phase until the end of the volume reduction phase, the ninth electrically actuable valve 60 is actuated, e.g. B. at about 35 to 45 ° crankshaft angle before reaching the top dead center.
- the electronic control unit 18 is also supplied with information about the currently present pressure in the compressed air reservoir 12. The information can either via the data bus 19 or via a separate pressure sensor connected to the compressed air reservoir 12 or connected to other parts of the compressed air supply and storage system, the electronic control unit 18 are supplied.
- the beginning of the actuation of the ninth electrically actuatable valve 60 and the duration of the operation of the electronic control unit 18 in dependence on the current pressure in the compressed air reservoir 12 is determined. For this purpose, corresponding characteristic curves or data can be stored in the electronic control unit 18.
- the electronic control unit 18 also actuates the ninth electrically operable valve 60 in response to the crankshaft angle when a volume increase phase begins. For example, the electronic control unit 8 switches on the ninth electrically actuatable valve 60 already when reaching the top dead center and switches the ninth electrically actuatable valve 60 z. B. at 15 to 30 ° crankshaft angle after top dead center again.
- the pressure control device in the embodiment according to FIG. 6 comprises the electronic control unit 18 and a valve device formed from the seventh and the ninth electrically actuatable valve 57, 60.
- FIG. 7 shows a further optimized embodiment of the invention with regard to the component expense.
- the compressed air compressor 1 is exempt from all valves shown in the cylinder head in the embodiment according to FIG. 5, namely the compression inlet valve 16, the compression outlet valve 17, the expansion outlet valve 50 and the expansion inlet valve 51.
- the inlet port 13 is connectable to the atmosphere via a tenth electrically operable valve 71, which is designed as a 2/2-way valve.
- the outlet connection 14 can be connected to the compressed air supply and storage installation 12 via the ninth electrically actuatable valve 60 already explained with reference to FIG. 6.
- the ninth and the tenth electrically operable valve 60, 71 are again shown in the unactuated case, ie in the shut-off position.
- the electronic control unit 18 Upon electrical actuation of the ninth and the tenth electrically actuatable valve 60, 71 by the electronic control unit 18, this is in the respective Passage switched.
- the electronic control unit 18 controls the ninth electrically actuatable valve 60 in the compressed air generation mode and in the compressed air expansion mode in the same manner as described above with respect to FIG.
- the tenth electrically actuatable valve 71 is controlled by the electronic control unit 18 in the compressed air generation mode in dependence on the crankshaft angle such that the connection to the atmosphere is established at the present negative pressure in the compression space 4.
- the tenth electrically operable valve 71 is during the entire volume expansion phase, d. H. from top dead center to bottom dead center, opened.
- the tenth electrically operable valve 71 is controlled by the electronic control unit 18 during the entire volume reduction phase, i. H. from bottom dead center to top dead center, open all the time. In the remaining times, the tenth electrically operable valve 71 is inactivated and thus shut off the connection to the atmosphere.
- the pressure control device in the embodiment according to FIG. 7 comprises the electronic control unit 18 and a valve device formed from the ninth and the tenth electrically actuatable valve 60, 71.
- FIG. 8 shows a further advantageous embodiment of the invention, wherein with respect to the ninth and tenth electrically operable valve 60, 71 explained above with reference to FIG. 7, the same functional principle is implemented as in the embodiment of FIG. 7.
- FIG operable valves as directly integrated into the cylinder head piezoelectrically actuated 2/2-way valves in the form of an eleventh electrically actuated valve 81 and one of a twelfth electrically actuated valve 82 is formed.
- the eleventh and twelfth electrically operable valves 81, 82 likewise each have an opening position assumed on actuation and a closed position.
- the eleventh electrically actuatable valve 81 When actuated, the eleventh electrically actuatable valve 81 connects the inlet port 13 with the compression chamber 4, in the unactuated case, this connection is shut off.
- the twelfth electrically operable valve 82 When actuated, the twelfth electrically operable valve 82 connects the outlet port 14 to the compression chamber 4, in the unactuated case, this connection is shut off.
- the pressure control device in the embodiment according to FIG. 3 comprises the electronic control device 18 and a valve device formed from the eleventh and the twelfth electrically actuatable valve 81, 82.
- FIG. 8 shows a further advantageous development of the invention by way of example.
- the heat exchanger 83 has a heat receiving element 84, the z. B. may be formed as a spiral helix.
- the heat receiving element 84 is thermally coupled to the drive motor 101 or a part thermally connected thereto.
- the heat exchanger 83 also has a first heat-dissipating element 85 thermally coupled to the compressed-air accumulator 12 and a second heat-dissipating element 86 thermally coupled to the compressed-air line 15. It is also possible that only one of the heat-emitting elements 85, 86 is provided.
- the heat dissipation elements 85, 86 may be constructed similar to the heat receiving element 84.
- a heat transfer medium for. As water, pumped.
- an example of an electric motor driven pump 86 is arranged in one of the pipes.
- the electronic control unit 18 can turn on or off the pump 86 as needed.
- the heat exchanger 83 described waste heat of the drive motor 01 can be used to heat the compressed air in the compressed air supply and storage system 12.
- FIG. 9 shows advantageous control times of the various valves described above in dependence on the crankshaft angle ⁇ of the compressed air compressor 1.
- the control times are shown when the compressed air compressor 1 is operated in compressor operation, ie in the compressed air generation mode.
- a valve connecting the compression space 4 to the compressed air supply and storage system 12 is opened only during a comparatively short period 91.
- the valve closes when the top dead center OT is reached. In this period, compressed air from the compression chamber 4 can flow into the compressed air supply and storage system 12.
- the volume enlargement phase starting from the top dead center OT to the bottom dead center UT, a valve connecting the compression space 4 to the atmosphere is opened during a relatively long period 92 which extends over the entire volume increase phase.
- FIG. 10 shows an operation of the aforementioned valves in the expansion operation of the air compressor, that is, FIG. H. in compressed air expansion mode, in which the compressed air compressor also serves as a drive for the vehicle.
- a valve is opened during the volume reduction phase during a relatively long period 93, which extends over the entire volume reduction phase from bottom dead center UT to top dead center TDC, which connects the compression space 4 with the atmosphere.
- a valve is opened, which connects the compression chamber 4 with the compressed air supply and storage system 12.
- this valve is opened only during a relatively short period 94 and soon, z. B. about 15 ° after top dead center, closed again.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Compressor (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010020672 | 2010-05-15 | ||
| DE102010033539A DE102010033539A1 (de) | 2010-05-15 | 2010-08-05 | Drucksteuereinrichtung für ein Fahrzeug sowie Verfahren zur Drucksteuerung |
| PCT/EP2011/001111 WO2011144271A1 (de) | 2010-05-15 | 2011-03-07 | Drucksteuereinrichtung für ein fahrzeug sowie verfahren zur drucksteuerung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2571735A1 true EP2571735A1 (de) | 2013-03-27 |
| EP2571735B1 EP2571735B1 (de) | 2019-09-11 |
Family
ID=44859795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11709004.3A Active EP2571735B1 (de) | 2010-05-15 | 2011-03-07 | Drucksteuereinrichtung für ein fahrzeug sowie verfahren zur drucksteuerung |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8910739B2 (de) |
| EP (1) | EP2571735B1 (de) |
| JP (1) | JP2013533820A (de) |
| KR (1) | KR101784542B1 (de) |
| CN (1) | CN102892647B (de) |
| BR (1) | BR112012029182A2 (de) |
| DE (1) | DE102010033539A1 (de) |
| WO (1) | WO2011144271A1 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011013440A1 (de) * | 2011-03-09 | 2012-09-13 | Wabco Gmbh | Verfahren zur Drucksteuerung in einem Fahrzeug sowie Drucksteuereinrichtung |
| JP5892399B2 (ja) * | 2011-11-28 | 2016-03-23 | ボルボ トラック コーポレイション | 自動車両の圧縮空気生成システムを制御する方法、圧縮空気生成システム及び係るシステムを有する自動車両 |
| US20130204490A1 (en) * | 2012-02-08 | 2013-08-08 | Bendix Commercial Vehicle Systems Llc | Uphill vehicle orientation adjusted compressor control |
| ES2425470A1 (es) * | 2012-02-29 | 2013-10-15 | Javier Ortiz De Urbina Angoso | Conjunto neumatico recuperador de energia cinetica |
| WO2014100156A1 (en) * | 2012-12-18 | 2014-06-26 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
| TWI702732B (zh) | 2014-10-20 | 2020-08-21 | 加拿大商奧羅拉太陽能技術(加拿大)有限公司 | 量測資料對生產工具位置及處理批次或時間的映射 |
| AT516731B1 (de) * | 2015-06-24 | 2016-08-15 | Alexander Fürschuss | Verbrennungskraftmaschine mit einem Abgasturbolader |
| DE102017003247A1 (de) | 2017-04-04 | 2018-10-04 | Wabco Gmbh | Verfahren zur Überwachung eines kupplungsgesteuerten Luftkompressors eines Fahrzeugs |
| DE102017111705A1 (de) * | 2017-05-30 | 2018-12-06 | Voith Patent Gmbh | Luftpressereinheit und Verfahren zum Betreiben eines Luftpressers |
| DE102017007781A1 (de) * | 2017-08-16 | 2019-02-21 | Wabco Gmbh | Elektropneumatisches Anhängerversorgungsmodul zum Bereitstellen des Anhängerversorgungsdrucks |
| JP7432740B2 (ja) * | 2020-08-24 | 2024-02-16 | 株式会社日立産機システム | 空気圧縮機 |
| CN111980881A (zh) * | 2020-08-25 | 2020-11-24 | 中国煤炭科工集团太原研究院有限公司 | 一种煤矿防爆柴油机用新型压气装置 |
Family Cites Families (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1139699B (de) * | 1956-11-29 | 1962-11-15 | Execution De Travaux Ind Et Ru | Antrieb fuer Kraftfahrzeuge |
| US3765180A (en) * | 1972-08-03 | 1973-10-16 | R Brown | Compressed air engine |
| US3913699A (en) * | 1974-11-18 | 1975-10-21 | Glenn L Dyer | Automotive power system |
| US4361204A (en) * | 1980-02-11 | 1982-11-30 | Earle John L | Hot gas vehicular power system with regeneration |
| US4478304A (en) * | 1980-08-14 | 1984-10-23 | Delano Tony M | Compressed air power engine |
| US4596119A (en) * | 1983-11-29 | 1986-06-24 | Earl L. Alderfer | Compressed air propulsion system for a vehicle |
| JPH01127412A (ja) * | 1986-12-23 | 1989-05-19 | Chen Kun Chan Jimmie | 車両運動エネルギ再生方法および装置 |
| DE19600910A1 (de) * | 1996-01-12 | 1996-06-20 | Ulrich Dr Ing Augustin | Verfahren zur Rückgewinnung kinetischer oder potentieller Energie, die beim Verzögern von Kraftfahrzeugen frei wird |
| FR2754309B1 (fr) * | 1996-10-07 | 1998-11-20 | Guy Negre | Procede et dispositif de reacceleration pour vehicule equipe de compresseurs d'alimentation en air comprime haute pression pour moteur depollue ou depolluant |
| JPH115439A (ja) * | 1997-06-17 | 1999-01-12 | Denso Corp | 車両用空気調和装置 |
| JPH11159449A (ja) * | 1997-11-27 | 1999-06-15 | Toyota Autom Loom Works Ltd | 可変容量型圧縮機 |
| US6223846B1 (en) * | 1998-06-15 | 2001-05-01 | Michael M. Schechter | Vehicle operating method and system |
| JP2002048068A (ja) * | 2000-07-31 | 2002-02-15 | Toyota Industries Corp | 可変容量型圧縮機 |
| US6629573B1 (en) * | 2000-11-01 | 2003-10-07 | Robert L. Perry | Air powered vehicle and power plant for the same |
| US7231998B1 (en) * | 2004-04-09 | 2007-06-19 | Michael Moses Schechter | Operating a vehicle with braking energy recovery |
| US8240416B2 (en) * | 2004-11-22 | 2012-08-14 | Yang Cong | Motor vehicles |
| US20060225941A1 (en) * | 2005-04-11 | 2006-10-12 | Cole William J | Compressed air powered vehicle |
| DE102005039281A1 (de) | 2005-08-19 | 2007-02-22 | Robert Bosch Gmbh | Hybridantrieb für ein Fahrzeug |
| US7607503B1 (en) * | 2006-03-03 | 2009-10-27 | Michael Moses Schechter | Operating a vehicle with high fuel efficiency |
| US7559394B2 (en) * | 2006-03-17 | 2009-07-14 | Gm Global Technology Operations, Inc. | Energy recovery system |
| TWM306620U (en) * | 2006-06-05 | 2007-02-21 | A-Song Liu | Transportation and power system thereof |
| US7464675B1 (en) * | 2006-11-01 | 2008-12-16 | Michael Moses Schechter | Operating an air-hybrid vehicle with camshaft-driven engine valves |
| WO2008088554A1 (en) * | 2007-01-18 | 2008-07-24 | Mack Trucks, Inc. | Hybrid internal combustion engine and air motor system and method |
| US8459391B2 (en) * | 2007-06-28 | 2013-06-11 | Averill Partners, Llc | Air start steam engine |
| DE102007033693A1 (de) | 2007-07-19 | 2009-01-22 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Anordnung zur Rückgewinnung ungenutzter Energie von Abgas einer Verbrennungskraftmaschine und entsprechende Verfahren |
| US20100307849A1 (en) * | 2008-01-29 | 2010-12-09 | Jianquan Li | Vehicle driven by compressed air and air compressor |
| GB2457917A (en) * | 2008-02-28 | 2009-09-02 | Univ Brunel | I.c engine air hybrid vehicle |
| US8087487B2 (en) * | 2008-11-12 | 2012-01-03 | Rez Mustafa | Hybrid turbo transmission |
| US7789181B1 (en) * | 2008-08-04 | 2010-09-07 | Michael Moses Schechter | Operating a plug-in air-hybrid vehicle |
| US20100095661A1 (en) * | 2008-10-17 | 2010-04-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Drive system and method for recovering waste energy from a vehicle |
| US8079437B2 (en) * | 2008-11-17 | 2011-12-20 | Allan Rosman | Hybrid hydraulic drive system with accumulator as the frame of vehicle |
| US8403091B2 (en) * | 2009-04-22 | 2013-03-26 | Amit Prakash | Pneumatic-IC engine based power management system for automobiles and the like |
| US9475394B2 (en) * | 2010-06-16 | 2016-10-25 | Hb Spider Llc | Compressed air engine |
| DE102011013440A1 (de) * | 2011-03-09 | 2012-09-13 | Wabco Gmbh | Verfahren zur Drucksteuerung in einem Fahrzeug sowie Drucksteuereinrichtung |
-
2010
- 2010-08-05 DE DE102010033539A patent/DE102010033539A1/de not_active Withdrawn
-
2011
- 2011-03-07 WO PCT/EP2011/001111 patent/WO2011144271A1/de not_active Ceased
- 2011-03-07 EP EP11709004.3A patent/EP2571735B1/de active Active
- 2011-03-07 JP JP2013511555A patent/JP2013533820A/ja active Pending
- 2011-03-07 CN CN201180024033.4A patent/CN102892647B/zh not_active Expired - Fee Related
- 2011-03-07 KR KR1020127032352A patent/KR101784542B1/ko not_active Expired - Fee Related
- 2011-03-07 BR BR112012029182A patent/BR112012029182A2/pt not_active Application Discontinuation
- 2011-03-07 US US13/582,197 patent/US8910739B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011144271A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112012029182A2 (pt) | 2017-07-18 |
| CN102892647B (zh) | 2016-03-16 |
| JP2013533820A (ja) | 2013-08-29 |
| US20130004339A1 (en) | 2013-01-03 |
| KR101784542B1 (ko) | 2017-10-11 |
| EP2571735B1 (de) | 2019-09-11 |
| CN102892647A (zh) | 2013-01-23 |
| WO2011144271A1 (de) | 2011-11-24 |
| US8910739B2 (en) | 2014-12-16 |
| KR20130109962A (ko) | 2013-10-08 |
| DE102010033539A1 (de) | 2011-11-17 |
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